package main

import "fmt"

func main() {

	var slice []int = nil
	slice = append(slice, 1)
	fmt.Printf("%v", slice)

	m := make(map[string]int)
	fmt.Printf("%v", m)

	//var m map[string]int
	//m["1"] =1 // error
	//fmt.Printf("%v", m)
}
